Railway crossing



Oct. 21 192%;

- 1,512,280 .1. J-. DU 501s RAILWAY CROS S I NG Filed Nov. 14. 1923 2Sheets-Shes. l

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J. J. DU BQIS RAILWAY CROSSING Filed Nov. 14, 1923 2 Sheets-Sheet. 2

g;- flwaots e ablio'cneq Patented Get. 14, 1924.

UNITED TES' PAT;

JOHN J'. DU BOIS, OIE PUEBLO, COLORADO, ASSIGNOR' TO THE DU BOISNOISELE$S CROSSING COMEANY, OF PUEBLO, COLORADO, A CORPORATION OFCOLORADO. I

RAILWAY CROSSING.

I Application filed November l l, 1923. Serial No. 674,699.

T 0 all whom it may concern:

Be it known that I, JOHN J. DU 1301s, a citizen of the United States,residing. at Pueblo, in the county of Pueblo and State of Colorado, haveinvented. certain new and useful Improvements in Railway Crossings, ofwhich the following is a specification. My inyention relates to arailway crossing, and the main object of the invention is to provide acrossing that will give more service than ordinary ones and which doesnot require replacement and tightening of bolts as is generally the casewith similar devices. One advantage of this construction is that it isnoiseless because the rails are joined very firmly to the crossing,presenting no sharp edges against the wheels and, furthermore, onaccount of no bolts being provided: that may be loosened by thevibration of passing trains.

Another Ob ectof the invention is to make the crossing very firm bymounting it on a concrete block with cast-in anchor hooks. This tends tomake a great saving in repairs, particularly as no ties are used underthe crossing.

Another advantage of this construction is that there are no parts to getout of order or break as the crossing formsasingle unit. A train canpass the crossing at a rate of speed up to seventy miles per hourwithoutbeing derailed and this railway crossing will outlast ordinary ones byfrom four to six years, the life of the present cr0ss ings being onlytwo to four years.

Water tending to very rapidly deteriorate iron constructions will notaffect this railway crossing as it is laid on a concrete slab instead ofcoming in contact with the soil.

In the accompanying drawings, one embodiment of the invention isillustrated, and

Figure 1 is a top plan View partly in section of this railway crossing;

Figure 2 is a section along line 22 of Figure 1;

Figure 3 is a fragmentary perspective view of one end of the railwaycrossing, and

Figure 4c is a section along line 44 of Figure 2.

The railway crossing consists of four intersecting members or bars 10cast together to form a unit or block of malleable steel. With therailway crossing placed on the 1 provided with channels 13 in theirtopfaces slightly less in depth than the height of the wheel flange.This depth extends between thevintersections of the tracks :or a littlebeyond. Thebottom of the channels ateach end thereof is then inclineddownwardly to a depth greater than theheight of the wheel flange asshown at 27 in the drawings. The innerface 9 of the outer wall 14: alongthe channels makes contact with the wheels, while the inner wall 15 istheguard. The ends of each inner wall 15 are preferably tapered, asindicated at 16,- to guide the wheel flanges intothe channels 13; 1

The inner side of the end of each outer Wall 14 is recessed toaccommodate the rail head 17, the web 18 and the foot 19, as best seenin-Figurel, so that when the rails are assembled to the crossing theinner face 20 of the'rail head is alined with the corresponding face 9ofthe channel 13, see also Figure 1. The heavier middle portion 21 ofthe recess wall is provided with a set ofstuds 22 securely held in thebar. These studs are intended to enter suitable apertures 23 in the web18' of the rail and to be riveted over to firmly connect the rail withthe bar. In addition to these riveted studs the joint 26 between therail and the bar is preferably welded.

Instead of using ties for the railway crossing, I preferably provide aheavy slab of concrete 24 upon which the railway crossing is placed andinto which are cast hooks 25 adapted to engage in corresponding socketsfurnished in the railway crossing at each intersection of the bars 10,but it is evident that additional hooks may be provided to engage theunder sides of the bars, if thought These bars inter- V crossing blockthey encounter the rising hottoms 27 of the channels which, by contacting with the outer peripheries of the wheel flanges, cause the wheels tobe lifted bodily from the top surfaces of the walls 14 as seen at 29 inFigure 2. The wheels will thus be made'to' roll on their flanges alongthe bottom of the channels over the crossing block a and finallybe letdown again on the top of the rails at the exit end of the crossingblock.

All knocking at the intersections is in this manner completelyprevented.

Having thus described the invention, what is claimed as new is:

1. In a railway crossing having intersecting bars provided with channelson the top side thereof, a recess formed at each end of the bars adaptedto receive the end of a rail, means for securely joining a rail end tothe corresponding end of each of said bars, said means including studsin said recess adapted to engage in corresponding apertures in the railend, the adjacent faces of the rail end and the bar end being welded; aconcrete slab constituting the base for said intersecting bars, andanchor hooks cast in said concrete slab adapted to engage withcorresponding sockets in said intersecting bars.

2. In a railway crossing having intersecting bars of trapezoidal crosssection, said bars being provided with channels on the top side thereof,a recess formed at each. end of these bars adapted to receive the end ofa rail, and means for securely joining a rail end to the correspondingend of each of these bars, said means including studs in said recessadapted toengage in corresponding apertures in the rail end, said studsbeing riveted to the rail end, and the adjacent faces of the rail endand the bar end being welded, the wall of said channel opposite saidrecess being tapered to form a guide for the wheel flange.

' 3. In a railway crossing having inter= secting bars of trapezoidalcross section, said bars being provided with channels on the topsidethereof, a recess formed at each end of these bars adapted to receivethe end of a rail, and means for securely joining a rail end to thecorresponding end of each of these bars, said means including studs insaid re cess adapted to engage in corresponding apertures in' the railend, said studs being riveted to the rail end, and the adjacent faces ofthe rail end and the bar end being welded the wall of said channelopposite said recess being tapered to form a guide for the wheel flange;a concrete slab constituting the base of the railway crossing, andanchor hooks cast in said concrete slab adapted to engage withcorresponding sockets in said intersecting bars.

In testimony whereof I affix my signature.

JOHN J. DU BOIS. [1 s.l

